Hi, I'm a 50-something re-rider (as in I rode in my teens) and now take 3 lessons a week. I started a year ago. Weekday lessons are here in NYC at a busy barn. These are "private" 1/2 hours in an arena with 2 or 3 other lessons going, plus maybe a private owner schooling their fancy horse at a higher level. I'm nervous about cantering with maybe 5 other horses being ridden by different levels of riders, doing different paces in different parts of the ring. Of my two instructors, one is easy going and I manage short canters, the other is intense (and a more serious equestrian) and I don't get a canter going without trying repeatedly and being lectured.

My 3rd lesson is outside the city on weekends and I am by myself. I can canter successfully and am even learning how to support my mount around turns (like me, she's a bit stiff).
I know that I'm overly sensitive to criticism no matter what the circumstances and it affects my performance. That's
my weakness. Should I tough it out with Intense Instructor (I like her personally), or at my level should I work on building my skills and stick with the two teachers with whom I feel most successful? My ultimate goal is to become a competant and humane general rider - and provide a good home for a decent horse. My immediate goal is to be successful in introductory dressage.